Wigan Warriors full-back Ryan Hampshire has agreed a new three-year contract, but is to join Castleford on a season-long loan deal for 2016.
The 20-year-old has signed a deal to run until 2018 after coming through the Warriors youth system.
Hampshire, who can also play at stand-off or hooker, scored twice in his 15 outings during the 2015 season.
"Firstly I am delighted to sign a contract extension with Wigan," he told the club website.
"Kris Radlinski and Ian Lenagan have assured me that I have a big future with Wigan and I appreciate the club's support at this stage.
"I am excited in joining Castleford on loan - being in a new environment at a club that is aiming high will no doubt be good."